Brooks Instrument XacTorr CMX160 - Manual (Page 37)

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6.2.1 Power-up LED Sequence Fails
If the Module or Network LEDs fail to sequence from OFF to Red to Green as
previously described, there is either a network power supply problem or the
device has most likely experienced an unrecoverable fault. The corrective action
is to verify that the power supply is providing 11 to 24 volts to the DeviceNet
network on the correct cable conductors. If the power supply voltage is properly
applied and the LEDs do not sequence correctly, the device should be returned
to the Brooks service center.
6.2.2 Sequence Passes, Module LED Turns Red
If the normal LED flash sequence completes and the Module LED then turns
Red, there is a problem with the gauge. Return the device to the Brooks service
center.
6.2.3 Sequence Passes, Module LED is Green, Net LED is Red
This situation will occur if there is another device on the network with the same
MAC ID or address. The Network LED will turn Red if the device initializes after
another device has already initialized itself with the same MAC ID. The first
device that “claims” the MAC ID will initialize correctly, but subsequent devices
will not be able to initialize with the same MAC ID. The solution is to select a
unique MAC ID for each device. Note that the embedded control system reads
the MAC ID (address) and baud rate switches only once during initialization after
power is applied.
In some cases, the Network LED may display Red due to a baud rate error.
verify that the baud rate of the device matches that of the network. If it is
necessary to change the address or baud rate, remove power, change the
switch settings, then reply power to device.
6.2.4 Sequence Passes, Module LED is Green, Net LED is Off
This problem will occur if the baud rate of the device is not the same as the baud
rate of the other devices on the network. Set the device baud rate to the correct
value and power cycle the device as described above.
6.2.5 Sequence Passes, Module LED is Green, Net LED is Flashing Green
This situation indicates that the device is working properly and that there are no
MAC ID or Baud Rate conflicts. The flashing Green Net LED indicates that the
device “sees” a valid network and it is waiting for the tool controller or scanner to
establish logical connection(s). Logical connections enable the process tool
controller to set or get variable or assemblies of data such as setpoint and
indicated flow.
6.0
_DEVICENET MODELS